(numbers rounded)
(selected formations)
Bakken: 1,566, 120 million, 6.9% ----> 2,338, 205 million, 11%
Bakken/Three Forks: 9, 0.19 million, 0.01% ---> 12, 0.67 million, 0.04%
Birdbear: 171, 18 million, 1% ---> 171, 18 million, 1%
Devonian: 137, 99 million, 5.7% ---> 137, 99 million, 5.4%
Duperow: 337, 50 million, 2.9% ---> 338, 50 million, 2.7%
Heath: 197, 66 million, 3.8% ---> 197, 66 million, 3.6%
Lodgepole: 48, 56 million, 3.2% ---> 49, 57 million, 3.1%
Madison: 5,469, 905 million, 52% ---> 5,505, 914 million, 49%
Red River/B: 1,220, 218 million, 12.4% ----> 1,238, 228 million, 12.4%
Sanish: 58, 13 million, 0.8% ---> 63, 14 million, 0.7%
Spearfish (3): 330, 54 million, 3.1% ---> 330, 54 million, 2.9%
Tyler (2): 87, 18 million, 1% ---> 88, 18 million, 1%
Totals:
2009: 10,245 wells, 1.7 billion barrels from 1951 - 2009
2010: 11,095 wells, 1.9 billion barrels from 1951 - 2010
Comments: At the end of 2010, North Dakota had produced a cumulative of 1.9 billion barrels of oil. The general consensus is that there are about 2 billion barrels of recoverable oil from the Bakken, and slightly less than 2 billion barrels from the Bakken/Three Forks. The increase from 1.7 billion barrels in 2009 to 1.9 billion barrels in 2010 represents a 13 percent increase in one year.
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